import java.awt.*;
import javax.swing.*;

public class FlowWindow extends JFrame {
	public FlowWindow(){
	Container contentPane=getContentPane();
	contentPane.setLayout(new GridLayout(3,2));
	contentPane.add(new JButton("Button1(NORTH)"));
	contentPane.add(new JButton("Button2(CENTER)"));
	contentPane.add(new JButton("Button3(WEST)"));
	contentPane.add(new JButton("Button4(SOUTH)"));
	contentPane.add(new JButton("Button5(EAST)"));
	}
}
